[Intel-gfx] [PATCH] drm/i915/skl: Correcting the flushing of pipe

[Tvrtko Ursulin]

On 12/11/2014 12:28 PM, sonika.jindal at intel.com wrote:
> From: Sonika Jindal <sonika.jindal at intel.com>
>
> We were incorreectly bypassing the flush everytime which led to fifo
> underrun when more than one plane is enabled.
>
> Signed-off-by: Sonika Jindal <sonika.jindal at intel.com>
> ---
>   drivers/gpu/drm/i915/intel_pm.c |    3 +--
>   1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
> index 5748bf9..8cd045a 100644
> --- a/drivers/gpu/drm/i915/intel_pm.c
> +++ b/drivers/gpu/drm/i915/intel_pm.c
> @@ -3633,9 +3633,8 @@ static void skl_flush_wm_values(struct drm_i915_private *dev_priv,
>   		    skl_ddb_entry_size(&cur_ddb->pipe[pipe])) {
>   			skl_wm_flush_pipe(dev_priv, pipe, 2);
>   			intel_wait_for_vblank(dev, pipe);
> +			reallocated[pipe] = true;
>   		}
> -
> -		reallocated[pipe] = true;
>   	}
>
>   	/*

Works like a charm now!

Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin at intel.com>

Regards,

Tvrtko